<div dir="ltr">Alan,<div><br></div><div>I can reproduce the problem when I explicitly turn off depth peeling (Edit |Settings : Render View | General : Enable Depth Peeling). </div><div>Can you run the following test and post the output? We'll know whether Depth peeling is supposed to work with your graphics driver.</div>
<div><br></div><div>ctest -R TestSystemCaps -V<br></div><div><br></div><div>Utkarsh</div><div><br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Oct 21, 2013 at 12:47 PM, Scott, W Alan <span dir="ltr"><<a href="mailto:wascott@sandia.gov" target="_blank">wascott@sandia.gov</a>></span> wrote:<br>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I replicated it on Linux. Written up as bug number 14325. Very easy to replicate.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Thanks,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Alan<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal" style="margin-left:.5in"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Utkarsh Ayachit [mailto:<a href="mailto:utkarsh.ayachit@kitware.com" target="_blank">utkarsh.ayachit@kitware.com</a>]
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<b>Sent:</b> Monday, October 21, 2013 4:18 AM<br>
<b>To:</b> Scott, W Alan; Burlen Loring<br>
<b>Cc:</b> Christopher L. P. Wolfe; <a href="mailto:paraview@paraview.org" target="_blank">paraview@paraview.org</a><br>
<b>Subject:</b> Re: [Paraview] [EXTERNAL] Alpha compositing reverses the depth of objects<u></u><u></u></span></p><div><div class="h5">
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<p class="MsoNormal" style="margin-left:.5in">Alan,<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:.5in">Did you reproduce this on a Mac or some other platform as well? Depth peeling doesn't work on certain Macs. Without Depth peeling, translucency will indeed manifest the issues seen. Burlen recently pushed/is pushing
some changes to extend support for more Macs. CC-ing Burlen in case he wants to elaborate on what's supported and not.<u></u><u></u></p>
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<u></u> <u></u></p>
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<p class="MsoNormal" style="margin-left:.5in">On Mon, Oct 14, 2013 at 1:05 PM, Scott, W Alan <<a href="mailto:wascott@sandia.gov" target="_blank">wascott@sandia.gov</a>> wrote:<u></u><u></u></p>
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<span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">GGrrr – that looks like a bug to me. I replicated this bug with Wavelet/ Contour, remote server, on current master. Want me to write up a bug, or do you want to do it?</span><u></u><u></u></p>
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<span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p>
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<span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Thanks for reporting this bug.</span><u></u><u></u></p>
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<span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p>
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<span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Alan</span><u></u><u></u></p>
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<span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p>
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<b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
<a href="mailto:paraview-bounces@paraview.org" target="_blank">paraview-bounces@paraview.org</a> [mailto:<a href="mailto:paraview-bounces@paraview.org" target="_blank">paraview-bounces@paraview.org</a>]
<b>On Behalf Of </b>Christopher L. P. Wolfe<br>
<b>Sent:</b> Monday, October 14, 2013 10:15 AM<br>
<b>To:</b> <a href="mailto:paraview@paraview.org" target="_blank">paraview@paraview.org</a><br>
<b>Subject:</b> [EXTERNAL] [Paraview] Alpha compositing reverses the depth of objects</span><u></u><u></u></p>
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<u></u><u></u></p>
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Hi all,<u></u><u></u></p>
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I'm having a weird problem with paraview (I'm using 4.01 for the Mac). Basically, if have an object with multiple layers, turning on transparency reverses the depth of the layers. This is easier to show than describe:<u></u><u></u></p>
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Here I have a scene constructed using the contour filter with alpha = 1.00:<u></u><u></u></p>
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<img border="0" width="640" height="284" src="cid:image001.png@01CECE4A.F9F8B190"><u></u><u></u></p>
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This is the same scene with alpha = 0.99:<u></u><u></u></p>
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<img border="0" width="640" height="284" src="cid:image002.png@01CECE4A.F9F8B190"><u></u><u></u></p>
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Several of the layers which where hidden in the back are now in front. In addition, several layers have completely transparent "windows" in them, even though the layers should just barely be transparent.<u></u><u></u></p>
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<u></u><u></u></p>
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Any suggestions on how to fix/workaround this issue?<u></u><u></u></p>
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<u></u><u></u></p>
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Thanks,<u></u><u></u></p>
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Christopher<u></u><u></u></p>
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